Gavin Hogan or also known as Sebastian Dark is an American rapper from Gastonia, North Carolina. When he was very young he had witnessed some dark times in his childhood and he wanted to make music. He loved rap ever since he was 6 or 7 years old listening to old school hip hop. He was very inspired he wanted to create his own music and dive into the rap game.

Before 2019 releasing Stardom and Ready For War
Sebastian made other projects named Sebastian Dark LP, Fame, Fame 2, Heat, Cosmic, Sebastian Dark EP, Rivalries, Fame 3, Cosmic II and then Journey Into The Universe. Sebastian deleted those albums from the public.

In 2020, Sebastian released his actual debut album named Hidden Talent, showing his peers that he has several different talents and he can do whatever. Four months later Sebastian released Cosmic III, this album proved to people that he can actually rap. He was having dark thoughts during this time and he decided to step into the darkness for a bit to finally find peace.

In 2021, Sebastian announced that Known Talent will be released August 27th 2021, the sequel to Hidden Talent. Just three months later he released his fourth installment of Cosmic and dissed the entire Project Ascension community due to them making fun of him for liking rap and because they thought he was black.

In November 2023, Sebastian dropped Cosmic V with a storyline of his brother Sheldon malevolently banishing Sebastian to another dimension. After that the Low Chainz ventured to the Burj Khalifa where Sebastian’s brother built the warp machine then entered the machine to find Sebastian. Cosmic V became Sebastian’s most successful album yet, songs like Leave Me Alone, Scarlette IV & Jedi Mind Tricks really stand out.